Finding the Fourth Proportional to 157,857.26, 217,846.24 and 86,241.92
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Solution
The fourth proportional to 157,857.26, 217,846.24 and 86,241.92 is: 119,015.61
Step by Step Solution
- Step 1: Write the proportion equation
157,857.26 : 217,846.24 = 86,241.92 : x - Step 2: Convert to fraction form
157,857.26/217,846.24 = 86,241.92/x - Step 3: Cross multiply
157,857.26x = 217,846.24 × 86,241.92 - Step 4: Simplify right side
157,857.26x = 18,787,478,002.38 - Step 5: Solve for x
x = 18,787,478,002.38/157,857.26 - Step 6: Final answer
x = 119,015.61
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.